To save this word, you'll need to log in.
Medical Definition of nocturnal emission
: an involuntary discharge of semen during sleep often accompanied by an erotic dream — compare wet dream
Comments on nocturnal emission
What made you want to look up nocturnal emission? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
A More Exception(al) Quiz
- Which of the following words is not a synonym for ‘a young person’?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Share nocturnal emission